Unlike most television series which wait until the entire series is filmed and aired before they release it on DVD, Glee has already released its first season on DVD, despite the fact that they have not yet completed filming the second season. This strategy supports increased sales volumes due to the following reasons: It allows the Glee fans to immediately purchase the DVD and view any episode they missed or simply review the series or the episodes they liked

It allows the Glee fans to begin collecting the series on DVD, which also supports the popularity of the show.

Another reason as to why it is estimated that the sales of the Glee DVDs would register high volumes is pegged to the soundtracks used in the filming of the series, namely the songs the students in the glee club sing. These are popular songs, listened and appreciated all over the world. They are undying songs which add to the desirability for the show as well as for the DVD.

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